21214704128

Names of 21214704128

• Cardinal: 21214704128 can be written as Twenty-one billion, two hundred fourteen million, seven hundred four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1214704128 × 10¹⁰

Factors of 21214704128

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 200

Divisors of 21214704128

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 8 16 32 41 64 82 128 157 164 256 314 328 512 628 656 1256 1312 1681 2512 2624 3362 5024 5248 6437 6724 10048 10496 12874 13448 20096 20992 24649 25748 26896 40192 49298 51496 53792 80384 98596 102992 107584 197192 205984 215168 263917 394384 411968 430336 527834 788768 823936 860672 1010609 1055668 1577536 1647872 2021218 2111336 3155072 3295744 4042436 4222672 6310144 8084872 8445344 12620288 16169744 16890688 32339488 33781376 41434969 64678976 67562752 82869938 129357952 135125504 165739876 258715904 331479752 517431808 662959504 1325919008 2651838016 5303676032 10607352064 21214704128
• Sum of all divisors σ(n): 43725537603
• Sum of proper divisors (its aliquot sum) s(n): 22510833475
• 21214704128 is an abundant number, because the sum of its proper divisors (22510833475) is greater than itself. Its abundance is 1296129347

Bases of 21214704128

• Binary: 10011110000011111101011001000000000₂
• Hexadecimal: 0x4F07EB200
• Base-36: 9QUOQGW

Squares and roots of 21214704128

• 21214704128 squared (21214704128²) is 450063671238580240384
• 21214704128 cubed (21214704128³) is 9547967624087943098533677105152
• The square root of 21214704128 is 145652.6832159299
• The cube root of 21214704128 is 2768.2947328915

Scales and comparisons

• 21,214,704,128 seconds is equal to 674 years, 29 weeks, 1 day, 13 hours, 22 minutes, 8 seconds.
• To count from 1 to 21,214,704,128 would take you about one thousand, three hundred forty-nine years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21214704128 cubic inches would be around 230.7 feet tall.

Recreational maths with 21214704128

• 21214704128 backwards is 82140741212
• 21214704128 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21214704128's digits is 32
• More coming soon!